javascript 對錶格元素的快捷操作，javascript快捷操作
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>New Web Project</title><style>table{width: 500px;}td{border:1px solid #ccc;padding:5px;}</style><script>window.onload=function(){var oTb=document.getElementById('tb');var oldColor=null;for(var i=0;i<oTb.tBodies[0].rows.length;i++){oTb.tBodies[0].rows[i].onmouseover=function(){oldColor=this.style.background;this.style.background='red';};oTb.tBodies[0].rows[i].onmouseout=function(){this.style.background=oldColor;};if(i%2){oTb.tBodies[0].rows[i].style.background='';}else{oTb.tBodies[0].rows[i].style.background='#ccc';}}};</script></head><body><table id="tb"><thead><tr><td>ID</td><td>姓名</td><td>年齡</td></tr></thead><tbody><tr><td>1</td><td>張三</td><td>23</td></tr><tr><td>2</td><td>李四</td><td>26</td></tr><tr><td>3</td><td>王五</td><td>29</td></tr><tr><td>4</td><td>青天決</td><td>28</td></tr><tr><td>5</td><td>趙少邦</td><td>23</td></tr></tbody></table></body></html>
運行結果圖：
通過上述代碼可以看出 javascript 裡內建了對於表格元素的快捷操作
1. oTb.tBodies[0].rows[i] 擷取tBody的某一行
2. oTb.tBodies[0].rows[i].cells[i] 擷取tbody裡的某一行 某一列
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